Principal Exchange-Traded Funds Principal U.S. Mega-Cap ETF (USMC) seeks to track an index of the largest U.S. companies by market capitalization, focusing on mega-cap stocks typically valued above $200 billion. This large-cap equity ETF provides concentrated exposure to America's most valuable publicly traded corporations.

How It Works

USMC employs a passively managed, market-capitalization-weighted approach that mirrors its underlying mega-cap index. The fund holds the largest U.S. companies in proportion to their market values, with technology and consumer discretionary giants likely dominating allocations. Rebalancing occurs periodically to maintain alignment with index changes and market cap thresholds. The concentrated portfolio typically holds 20-50 of America's largest companies, creating significant exposure to individual stock movements.

Key Features

  • Ultra-low 0.00% expense ratio makes it one of the most cost-effective ways to access mega-cap U.S. equity exposure
  • Concentrated portfolio of 20-50 largest companies provides focused exposure to market leaders like Apple, Microsoft, and Amazon
  • Launched in 2017 but appears to have limited assets and trading activity, potentially creating liquidity concerns

Risks

  • This ETF can lose significant value during broad market downturns, with mega-cap stocks potentially declining 20-40% in bear markets despite their size
  • Concentration risk is high as top 10 holdings likely represent 40-60% of assets, making performance heavily dependent on few companies
  • Limited assets under management and trading volume may create wider bid-ask spreads and difficulty executing large trades efficiently

Who Should Own This

Best suited for tactical allocation (5-15% of equity portfolio) by investors with 3+ year time horizons seeking concentrated exposure to America's largest companies. Medium-to-high risk tolerance required due to concentration risk. Appeals to investors who want mega-cap exposure without broader market dilution from smaller companies.